你无法改变过去，但可以改变过去的意义。
What I’ve achieved in tennis is great, but who I am as a person is more important.
The only way to do great work is to love what you do.
The truth is rarely pure and never simple.
For a great payoff be especially curious about the things you are not interested in.
I am more interested in what can be done with the knowledge than in the knowledge itself.